Two-loop leading color corrections to heavy-quark pair production in the gluon fusion channel

Authors

R. Bonciani, Université Joseph Fourier
Andrea Ferroglia, CUNY New York City College of TechnologyFollow
T. Gehrmann, Universität Zürich
A. von Manteuffel, Universität Zürich
C. Studerus, Universität Bielefeld

Document Type

Article

Publication Date

1-24-2011

Abstract

We evaluate the two-loop QCD diagrams contributing to the leading color coefficient of the heavy-quark pair production cross section in the gluon fusion channel. We obtain an analytic expression, which is valid for any value of the Mandelstam invariants s and t and of the heavy-quark mass m. Our findings agree with previous analytic results in the small-mass limit and with recent results for the coefficients of the IR poles.

Comments

This article was originally published in Journal of High Energy Physics, available at http://dx.doi.org/10.1007/JHEP01(2011)102

This work is distributed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).